Maintenance
034-11471_1.1_11.10.2017
90
8.2.2 Brake system
 Replace the brake linings on the disk brake when 
the pad thickness has reached 0.5 mm.
8.2.3 Electrical cables and brake cables
 Check all visible electrical cables and cables for 
damage. If, for example, the sheathing is 
compressed, the bicycle will need to be removed 
from service until the cables have been replaced.
 Check all electrical cables and cables to make sure 
they are fully functional.
8.2.4 Gear shift
 Check the gear shift and the shifter or the twist grip 
setting and adjust it as necessary.
8.2.5 USB port
8.2.6 Chain or belt tension
Any moisture which enters through the USB port may 
trigger a short circuit in the display.
 Regularly check the position of the cover on the USB 
port and adjust it as necessary.
Excessive chain or belt tension increases wear.
If the chain or belt tension is too low, there is a risk that 
the chain or belt will slip off the chain wheels.
 Check the chain and belt tension once a month.
EN_034-11471_1.1_0.01_09.18_HERCULES BOSCH_Puria_Inhalt.book  Page 90  Wednesday, October 11, 2017  1:59 PM